Neurofibromatosis-1: a maximum likelihood estimation of mutation rate
β Scribed by Maurizio Clementi; Guido Barbujani; Licia Turolla; Romano Tenconi
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 350 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0340-6717
No coin nor oath required. For personal study only.
β¦ Synopsis
Methods of classical segregation analysis were applied to a sample of 129 sibships with one or more individuals affected by neurofibromatosis-1 (NF-1). The sample consists only of subjects with NF-1; all the probands had been referred for genetic counselling because of cafΓ©-au-lait spots, and a diagnostic protocol was invariably applied. No deviation from the segregation ratio expected for a fully penetrant Mendelian dominant gene was observed. A maximum likelihood estimate of the proportion of sporadic cases was obtained, and the mutation rate was estimated to be 6.5 x 10(-5) gametes per generation (95% CI 5.0-8.1).
π SIMILAR VOLUMES
Carrier detection tests were carried out on 21 mothers of isolated cases of severe Haemophilia A, according to WHO recommendations. A maximum likelihood estimate of the male to female mutation ratio of 9.6 (95% confidence limits 2.2-41.5) was obtained.
Maximum likelihood estimator is obtained for the mortality rate function of a specific type appearing in survival data andysis. Strict consistency of this estimator is proved.
We connect the rate of consistency of the quasi-maximum likelihood estimator in GARCH(p; q) sequences with the number of the moments of the innovations.